Philips 3156 Standard Mini Auto Bulb (Pack of 2)

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A rating, expressed in watts, to indicate the rate at which a lamp consumes energy. Also known as wattage value.

Energy Used

27 Watts

Volts

A measure of "electrical pressure" between two points. The voltage specification of an incandescent lamp is the electrical "pressure" required to drive it at its designed point. The "voltage" of a ballast (e.g. 120 V) refers to the line voltage coming from the power source and is connected to the ballast.

Volts

12.8

Base

The end (or ends) of the lamp that fits into the socket.

Base

Wedge S.F.

Bulb Shape

The description of the general appearance of a lamp/bulb consists of a letter(s) followed by a number. The letter indicates the shape of the bulb and the number relates to the diameter of the bulb in eighths of an inch. For example, a common household bulb is the A-19. The bulb is "A" shape and the diameter would be nineteen 8ths of an inch, or 2 3/8".

Bulb Shape

S-8

Candle Power

A measure of how much light the bulb produces, measured at the bulb, based on the amount originally emitted by a single candle.

Candle Power

32

Bulb Finish

The surface finish of a bulb, which may affect the quality of the light emitted.

Bulb Finish

Clear

Bulb Technology

The technology implemented by the bulb, e.g. incandescent, halogen, LED

Bulb Technology

Incandescent

Average Rated Life (hr)

A measurement of the average length of time, between first use and the point when 50% of the lamps tested have stopped functioning, , using an operating cycle of 3 hours on, 20 minutes off.

Average Rated Life (hr)

1200

Class and Filament

A designation used to describe the shape or structure of the filament in an incandescent or halogen light bulb. Most commonly used for specialty products like rough service and antique replica lamps.

Class and Filament

C-6

Length (in)

Also referred to as "Maximum Overall Length" (MOL). For light bulbs, it measures the length of a light bulb, from the top of the bulb to the bottom of the base or pins and is typically expressed in inches. For light fixtures and ballasts, it applies to the total horizontal length of the item.

Length (in)

2.1

Diameter (in)

Light bulbs: a measurement of a bulb's width taken at the widest point of the bulb. Fixtures: the measurement across the widest point of a circular fixture.

Diameter (in)

1

GE

A General Electric brand-specific product number for an equivalent item and is provided for the purpose of cross-referencing.

GE

3156

Osram Sylvania

An Osram Sylvania brand-specific product number for an equivalent item and is provided for the purpose of cross-referencing.

I have been very happy with this product

4

I have bought and used these bulbs several times. They do the job I want them to do. I think they burn out too quickly and I do not know why. I will continue to buy them as they are a good bulb at a good price. Shipping is a little pricey.

Mr. Dick

Hernando, FL

2014-11-16

true

Philips 3156 Standard Mini Auto Bulb

4.01

100.0

Q & A

Is the 3156 bulb the same as the Eiko 3156K??
It looks the same but I cannot tell for sure.
Thanks

Ricky B

2011-10-06

The products are the same in specs and are interchangeable. The Eiko product is a krypton bulb and the appearance of the light output will not be an exact match. The krypton typically burns whiter than standard halogens.